utilities.c revision 221110
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 3223675Speterstatic const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 33114589Sobrien#endif /* not lint */ 3441477Sjulian#endif 35114589Sobrien#include <sys/cdefs.h> 36114589Sobrien__FBSDID("$FreeBSD: head/sbin/fsck_ffs/utilities.c 221110 2011-04-27 02:55:03Z des $"); 371558Srgrimes 381558Srgrimes#include <sys/param.h> 3966861Sadrian#include <sys/types.h> 4066861Sadrian#include <sys/stat.h> 4123675Speter 421558Srgrimes#include <ufs/ufs/dinode.h> 431558Srgrimes#include <ufs/ufs/dir.h> 441558Srgrimes#include <ufs/ffs/fs.h> 4523799Sbde 4623675Speter#include <err.h> 4766861Sadrian#include <errno.h> 4823799Sbde#include <string.h> 4966861Sadrian#include <ctype.h> 5066861Sadrian#include <fstab.h> 5175927Smckusick#include <paths.h> 5266861Sadrian#include <stdio.h> 5366861Sadrian#include <stdlib.h> 5466861Sadrian#include <unistd.h> 5523675Speter 561558Srgrimes#include "fsck.h" 571558Srgrimes 581558Srgrimes 5966861Sadrianchar * 6092839Simpblockcheck(char *origname) 6166861Sadrian{ 6286514Siedowse struct stat stblock; 6386514Siedowse char *newname, *cp; 6466861Sadrian struct fstab *fsinfo; 6566861Sadrian int retried = 0, len; 6675927Smckusick static char device[MAXPATHLEN]; 6766861Sadrian 6866861Sadrian newname = origname; 6975927Smckusick if (stat(newname, &stblock) < 0) { 7075927Smckusick cp = strrchr(newname, '/'); 7175927Smckusick if (cp == 0) { 7275927Smckusick (void)snprintf(device, sizeof(device), "%s%s", 7375927Smckusick _PATH_DEV, newname); 7475927Smckusick newname = device; 7575927Smckusick } 7675927Smckusick } 7766861Sadrianretry: 7866861Sadrian if (stat(newname, &stblock) < 0) { 7966861Sadrian printf("Can't stat %s: %s\n", newname, strerror(errno)); 8066861Sadrian return (origname); 8166861Sadrian } 8266861Sadrian switch(stblock.st_mode & S_IFMT) { 8366861Sadrian case S_IFCHR: 8466861Sadrian case S_IFBLK: 8566861Sadrian return(newname); 8666861Sadrian case S_IFDIR: 8766861Sadrian if (retried) 8866861Sadrian break; 89221110Sdes 9066861Sadrian len = strlen(origname) - 1; 9166861Sadrian if (len > 0 && origname[len] == '/') 9266861Sadrian /* remove trailing slash */ 9366861Sadrian origname[len] = '\0'; 9466861Sadrian if ((fsinfo = getfsfile(origname)) == NULL) { 9570166Sphk printf( 9670166Sphk "Can't resolve %s to character special device.\n", 9766861Sadrian origname); 9875927Smckusick return (origname); 9966861Sadrian } 10066861Sadrian newname = fsinfo->fs_spec; 10166861Sadrian retried++; 10266861Sadrian goto retry; 10366861Sadrian } 10466861Sadrian /* 10566861Sadrian * Not a block or character device, just return name and 10666861Sadrian * let the user decide whether to use it. 10766861Sadrian */ 10866861Sadrian return (origname); 10966861Sadrian} 11070050Siedowse 11170050Siedowsevoid 112100935Sphkinfohandler(int sig __unused) 11370050Siedowse{ 11470050Siedowse got_siginfo = 1; 11570050Siedowse} 116126345Sscottl 117126345Sscottlvoid 118126345Sscottlalarmhandler(int sig __unused) 119126345Sscottl{ 120126345Sscottl got_sigalarm = 1; 121126345Sscottl} 122